This article describes the procedure and results of two workshops conducted following interviews with potential users within the development process of a feedback component for the Historytelling system, a cooperative interactive website for older adults. For the development of the Historytelling system we follow a Human Centered Design for aging (HCD+) process, gathering requirements and designing first prototypes of this component. Workshop results show that the most important element of the feedback component is the personal, context sensitive acknowledgement of the stories which can be enriched with multimedia contents to provide more palpable appreciation.